--- title: "Mastering Web Performance : The Operational Guide for IT Managers" description: Discover a step-by-step approach to effectively diagnose and resolve web performance incidents. Download the expert guide for IT leaders today! image: https://awesome.centreon.com/hubfs/LP%20featured%20image%20-%20Guide%20Web%20Performance%20IT%20managers_EN2.png --- [![](//26072647.fs1.hubspotusercontent-eu1.net/hubfs/26072647/raw_assets/public/centreon/assets/images/branding/logo-white.png) ![](//26072647.fs1.hubspotusercontent-eu1.net/hubfs/26072647/raw_assets/public/centreon/assets/images/branding/logo.png)](https://www.centreon.com) GUIDE ![webperf6](https://26072647.fs1.hubspotusercontent-eu1.net/hubfs/26072647/webperf6.png)   # Mastering Web Performance: The Operational Guide for IT Managers **Discover how to improve your web performance!** ![Mockup Guide Web Performance IT managers_EN3](https://26072647.fs1.hubspotusercontent-eu1.net/hubfs/26072647/Mockup%20Guide%20Web%20Performance%20IT%20managers_EN3.png) **Why Are Web Slowdowns So Hard to Diagnose?** A modern web page relies on a complex architecture: frontend, CMS, backend, database, CDN, APIs, third-party services… When a slowdown occurs, the symptom is visible (slow page, frozen checkout, etc.) but the real cause almost never is! Is the incident coming from your infrastructure? Your code? Your CMS? A marketing script? Or a third-party service? Is your diagnosis taking too long? Is your MTTR increasing and even impacting revenue? **What this guide will give you:** - A clear method to diagnose web performance issues - The right metrics to analyze (TTFB, LCP, INP, percentiles, etc.) - A structured approach based on RUM and synthetic monitoring - A framework to quickly assign the issue to the right team   **🎯 Goal:** Move from guesswork to fast, data-driven, and effective analysis! **Don’t wait any longer, download the guide today!** ## Download the free guide by filling in this form Download the expert guide now! [![](//26072647.fs1.hubspotusercontent-eu1.net/hubfs/26072647/raw_assets/public/centreon/assets/images/branding/logo.png)](https://www.centreon.com)